xorg-server-1.4/hw/dmx/glxProxy/glxfbconfig.c

   1 /*
   2 ** License Applicability. Except to the extent portions of this file are
   3 ** made subject to an alternative license as permitted in the SGI Free
   4 ** Software License B, Version 1.1 (the "License"), the contents of this
   5 ** file are subject only to the provisions of the License. You may not use
   6 ** this file except in compliance with the License. You may obtain a copy
   7 ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
   8 ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
   9 **
  10 ** http://oss.sgi.com/projects/FreeB
  11 **
  12 ** Note that, as provided in the License, the Software is distributed on an
  13 ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
  14 ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
  15 ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
  16 ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
  17 **
  18 ** Original Code. The Original Code is: OpenGL Sample Implementation,
  19 ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
  20 ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
  21 ** Copyright in any portions created by third parties is as indicated
  22 ** elsewhere herein. All Rights Reserved.
  23 **
  24 ** Additional Notice Provisions: The application programming interfaces
  25 ** established by SGI in conjunction with the Original Code are The
  26 ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
  27 ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
  28 ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
  29 ** Window System(R) (Version 1.3), released October 19, 1998. This software
  30 ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
  31 ** published by SGI, but has not been independently verified as being
  32 ** compliant with the OpenGL(R) version 1.2.1 Specification.
  33 **
  34 */
  35
  36 #include "glxfbconfig.h"
  37
  38 int AreFBConfigsMatch( __GLXFBConfig *c1, __GLXFBConfig *c2 )
  39 {
  40    int match;
  41
  42    match = (
  43              (c1->visualType == c2->visualType) &&
  44              (c1->transparentType == c2->transparentType) &&
  45              (c1->transparentRed == c2->transparentRed) &&
  46              (c1->transparentGreen == c2->transparentGreen) &&
  47              (c1->transparentBlue == c2->transparentBlue) &&
  48              (c1->transparentAlpha == c2->transparentAlpha) &&
  49              (c1->transparentIndex == c2->transparentIndex) &&
  50              (c1->visualCaveat == c2->visualCaveat) &&
  51              (c1->drawableType == c2->drawableType) &&
  52              (c1->renderType == c2->renderType) &&
  53 #if 0
  54              (c1->maxPbufferWidth == c2->maxPbufferWidth) &&
  55              (c1->maxPbufferHeight == c2->maxPbufferHeight) &&
  56              (c1->maxPbufferPixels == c2->maxPbufferPixels) &&
  57              (c1->optimalPbufferWidth == c2->optimalPbufferWidth) &&
  58              (c1->optimalPbufferHeight == c2->optimalPbufferHeight) &&
  59 #endif
  60              (c1->visualSelectGroup == c2->visualSelectGroup) &&
  61              (c1->rgbMode == c2->rgbMode) &&
  62              (c1->colorIndexMode == c2->colorIndexMode) &&
  63              (c1->doubleBufferMode == c2->doubleBufferMode) &&
  64              (c1->stereoMode == c2->stereoMode) &&
  65              (c1->haveAccumBuffer == c2->haveAccumBuffer) &&
  66              (c1->haveDepthBuffer == c2->haveDepthBuffer) &&
  67              (c1->haveStencilBuffer == c2->haveStencilBuffer) &&
  68              (c1->accumRedBits == c2->accumRedBits) &&
  69              (c1->accumGreenBits == c2->accumGreenBits) &&
  70              (c1->accumBlueBits == c2->accumBlueBits) &&
  71              (c1->accumAlphaBits == c2->accumAlphaBits) &&
  72              (c1->depthBits == c2->depthBits) &&
  73              (c1->stencilBits == c2->stencilBits) &&
  74              (c1->indexBits == c2->indexBits) &&
  75              (c1->redBits == c2->redBits) &&
  76              (c1->greenBits == c2->greenBits) &&
  77              (c1->blueBits == c2->blueBits) &&
  78              (c1->alphaBits == c2->alphaBits) &&
  79              (c1->redMask == c2->redMask) &&
  80              (c1->greenMask == c2->greenMask) &&
  81              (c1->blueMask == c2->blueMask) &&
  82              (c1->alphaMask == c2->alphaMask) &&
  83              (c1->multiSampleSize == c2->multiSampleSize) &&
  84              (c1->nMultiSampleBuffers == c2->nMultiSampleBuffers) &&
  85              (c1->maxAuxBuffers == c2->maxAuxBuffers) &&
  86              (c1->level == c2->level) &&
  87              (c1->extendedRange == c2->extendedRange) &&
  88              (c1->minRed == c2->minRed) &&
  89              (c1->maxRed == c2->maxRed) &&
  90              (c1->minGreen == c2->minGreen) &&
  91              (c1->maxGreen == c2->maxGreen) &&
  92              (c1->minBlue == c2->minBlue) &&
  93              (c1->maxBlue == c2->maxBlue) &&
  94              (c1->minAlpha == c2->minAlpha) &&
  95              (c1->maxAlpha == c2->maxAlpha)
  96            );
  97
  98    return( match );
  99 }
 100
 101 __GLXFBConfig *FindMatchingFBConfig( __GLXFBConfig *c, __GLXFBConfig *configs, int nconfigs )
 102 {
 103    int i;
 104
 105    for (i=0; i<nconfigs; i++) {
 106       if ( AreFBConfigsMatch( c, configs + i ) )
 107          return( configs + i );
 108    }
 109
 110    return(0);
 111 }